The correct answer is D. Benzene hexachloride.
Gammaxane is a common name for benzene hexachloride, a chlorinated hydrocarbon insecticide. It is a white, crystalline solid that is soluble in water and most organic solvents. Gammaxane is a broad-spectrum insecticide that is effective against a variety of insects, including mosquitoes, flies, fleas, and ticks. It is also used as a wood preservative and as a pesticide in agriculture.
Toluene is a colorless, flammable liquid that is used as a solvent and in the manufacture of explosives, plastics, and other chemicals. Chlorobenzene is a colorless, flammable liquid that is used as a solvent and in the manufacture of pesticides, dyes, and other chemicals. Aniline is a colorless, flammable liquid that is used in the manufacture of dyes, drugs, and other chemicals.
Toluene, chlorobenzene, and aniline are all chlorinated hydrocarbons, but they are not benzene hexachloride. Benzene hexachloride is a specific compound with the chemical formula C6H6Cl6. It is a different compound than toluene, chlorobenzene, and aniline.